Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media

The inhibitory action of potassium sorbate (KS) degradation products against Staphylococcus aureus growth was examined in model aqueous systems. KS degradation products formation was induced by the storage at 70°C for 7 days or at 37°C for 90 days of aqueous systems containing basically brain heart...

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Autores principales:	Campos, C.A., Alzamora, S.M., Gerschenson, L.N.
Formato:	JOUR
Materias:	Inhibitory action Sorbate degradation products Staphylococcus aureus drug metabolite sorbate potassium antibacterial activity article bacterium culture drug degradation storage temperature Culture Media Food Preservatives Laboratories Sorbic Acid
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01681605_v54_n1-2_p117_Campos
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01681605_v54_n1-2_p117_Campos
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spelling	todo:paper_01681605_v54_n1-2_p117_Campos2023-10-03T15:06:00Z Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media Campos, C.A. Alzamora, S.M. Gerschenson, L.N. Inhibitory action Sorbate degradation products Staphylococcus aureus drug metabolite sorbate potassium antibacterial activity article bacterium culture drug degradation Staphylococcus aureus storage temperature Culture Media Food Preservatives Laboratories Sorbic Acid Staphylococcus aureus Staphylococcus aureus The inhibitory action of potassium sorbate (KS) degradation products against Staphylococcus aureus growth was examined in model aqueous systems. KS degradation products formation was induced by the storage at 70°C for 7 days or at 37°C for 90 days of aqueous systems containing basically brain heart infusion, yeast extract and different amounts of KS at pH 5.5. After storage, residual amounts of KS were measured and each system was inoculated with a pool of three S. aureus strains at 104 colony forming units/ml. Degradation products from KS generally inhibited S. aureus growth by two to three log cycles. However, the population of S. aureus reached a higher level when the degradation products were formed at 37°C suggesting that the nature of the degradation products seemed to depend on the temperature at which they were produced. The inhibitory activity produced by KS degradation products along with residual amounts of KS was smaller than the one produced by the initial amounts of the preservative. Copyright (C) 2000 Elsevier Science B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01681605_v54_n1-2_p117_Campos
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Inhibitory action Sorbate degradation products Staphylococcus aureus drug metabolite sorbate potassium antibacterial activity article bacterium culture drug degradation Staphylococcus aureus storage temperature Culture Media Food Preservatives Laboratories Sorbic Acid Staphylococcus aureus Staphylococcus aureus
spellingShingle	Inhibitory action Sorbate degradation products Staphylococcus aureus drug metabolite sorbate potassium antibacterial activity article bacterium culture drug degradation Staphylococcus aureus storage temperature Culture Media Food Preservatives Laboratories Sorbic Acid Staphylococcus aureus Staphylococcus aureus Campos, C.A. Alzamora, S.M. Gerschenson, L.N. Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
topic_facet	Inhibitory action Sorbate degradation products Staphylococcus aureus drug metabolite sorbate potassium antibacterial activity article bacterium culture drug degradation Staphylococcus aureus storage temperature Culture Media Food Preservatives Laboratories Sorbic Acid Staphylococcus aureus Staphylococcus aureus
description	The inhibitory action of potassium sorbate (KS) degradation products against Staphylococcus aureus growth was examined in model aqueous systems. KS degradation products formation was induced by the storage at 70°C for 7 days or at 37°C for 90 days of aqueous systems containing basically brain heart infusion, yeast extract and different amounts of KS at pH 5.5. After storage, residual amounts of KS were measured and each system was inoculated with a pool of three S. aureus strains at 104 colony forming units/ml. Degradation products from KS generally inhibited S. aureus growth by two to three log cycles. However, the population of S. aureus reached a higher level when the degradation products were formed at 37°C suggesting that the nature of the degradation products seemed to depend on the temperature at which they were produced. The inhibitory activity produced by KS degradation products along with residual amounts of KS was smaller than the one produced by the initial amounts of the preservative. Copyright (C) 2000 Elsevier Science B.V.
format	JOUR
author	Campos, C.A. Alzamora, S.M. Gerschenson, L.N.
author_facet	Campos, C.A. Alzamora, S.M. Gerschenson, L.N.
author_sort	Campos, C.A.
title	Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
title_short	Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
title_full	Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
title_fullStr	Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
title_full_unstemmed	Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
title_sort	inhibitory action of potassium sorbate degradation products against staphylococcus aureus growth in laboratory media
url	http://hdl.handle.net/20.500.12110/paper_01681605_v54_n1-2_p117_Campos
work_keys_str_mv	AT camposca inhibitoryactionofpotassiumsorbatedegradationproductsagainststaphylococcusaureusgrowthinlaboratorymedia AT alzamorasm inhibitoryactionofpotassiumsorbatedegradationproductsagainststaphylococcusaureusgrowthinlaboratorymedia AT gerschensonln inhibitoryactionofpotassiumsorbatedegradationproductsagainststaphylococcusaureusgrowthinlaboratorymedia
_version_	1782025828029169664

Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media

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